While browsing some OS/2 news websites, I stumbled upon the usage tutorial included in OS/2 2.1 at GUIdebook (an invaluable website for (G)UI fanatics such as myself). To set the mood: "This tutorial describes how you work with the objects (small pictures) on your screen. Some objects are folders, which contain other objects. Your screen is called your desktop (pictured on the right), which is a folder itself." Have fun, boys and girls, in 1993-style.